dobchestee



(No Mddel.)

E. GQDOROHESTER.

BREBGH LOADING FIRE ARM.

' No. 305,160 Patented'Sept. 1 6, 1884.

UNITED STATES AT pFlCEt EDWARD e. DORGHESTER, or GENEVA, NEW YORK.

- -\BZREECH-LOADING FIRE-ARM.

SBElCIFICAT ION forming part of Letters Patent No. 305,160, dated September 16, 1884. V

I Application filed April 18, 1884. moinorleld 1'0 all whom it may concern: Be it known that I, EDWARD G. DOROHESTER, of Geneva, in the county of Ontario and State of New York, have invented a certain new and useful Improvement in Fire-Arms; and I do hereby declare ,that the following is a full, clear, and exact description of the same, reference being had to the accombanvine draw- .ings, in which- Figure 1 is a side elevation of a portion-of a gun showing my improvement, the exterior casing being removed and a.porti0n being shown in section. Fig. 2is aplan of the workmg parts. Figs. 3, 4, 5, and'fi are detail views.

My improvement relates to the locks of.

breech-loading guns; and it consists in the construction and arrangement of parts herearm, E, having an elbow, 'E, that enters the inafter describedand more definitely claimed. In the drawings, A shows the breech-piece Of an ordinary double-barreled gun.

B B are the barrels,hi nged at a to the breechplece, so as to turn up and down atthe rear in the ordinary way.

'0 isthe usual lug at the rear of the barrels, having a slot, b, into which strikes the sliding-bolt D for/locking the barrels down. The bolt I) is operated by any' suitable means, that shown in thedrawin'gs being. an exterior slot of the bolt. 7

. c isa spring-pin for catching and holding the bolt back while the-barrels are raised.

F is a lug on the underside ofthe barrels, and d is a small roller pivoted at its rear end. G is a hook-shaped cam turningon pivot e,

the barrels are closed. In raising the'barrels lines,Fig.' 1'..If desired, the roller may be dispensed with and the end 'of the lug do'the same work.

His the hammer, of which one is used on Y each side, as in all double-'barreled guns. The

hammer turns on a pivot, f, and is provided at'its lower-end, below the pivot, with a slot. 9.

, I is a link pivoted at one end to'the bottom of the cam G, the opposite end having a pin which passes through the slot 9 of the hammbr. \Vhen the barrels are raised at the rear to open the gun, as before described, the turning of cam G draws on link I and the latter draws on the hammer and cooks the same.

When the'barrels are lowered again and the gun closed ready for firing, the pin at the rear end of the links moves back in slot ,9, leaving the'hammercocked. .In this gun the hammers always remain cocked ready for use. The ham.- mer is operatedby the ordinary spring, h.

J is the sear or dog for holding the'hammer cooked, the same being pivoted at iand en-' gaging with anotch of the hammer as usual. It is provided with along arm, J, which extends back and is provided-with a right angled elbow, j, that ext-ends to the center line of the gun.

erates in connectionwith a stationary index or mark, 0, Fig. 6. The safety-arm is forced down so that its pin Zwill rest in the socket p of the hammer by means of a spring, r. When the'safety-arm is so engaged with the ham mer, the latter cannot drop till the pin of the safety-arm risesout of the-open socket of the hammerby the means hereinafter described.

' L is one of the triggers of the gun, the same being pivoted at s. The top edge of the trigger rests directly under the two crank ends j m of the dog'and the safety-arm, and when the trigger is raised it first raises the crankarm m of the safety-arm K, which raises the pin 2 from the open socket p, and then it raises the crank j, which frees the dog J .from the hammer, allowing the latter to fall, thus discharging the gun. The trigger has also at its front upper enda .raised shoulder, q, which,v

' when, the trigger is lowered, comes just below the bottom of the sliding-bolt D,that locks the barrels down. A to disengage the barrels,it slides back overthe shoulder q of the trigger, and locks the latter down, so that it'cannot be raised to discharge the gun orto free the hammer.

M is an arm pivoted at t, and which I de- When the bolt D is slid back ICC nominate the trigger-bolt. Its head has 2 I 305-,1so

ofl'sets or projections 22 w,which cover the two crank ends j m of the dog and safety-arm; also, a shoulder, which' covers the rear top edge of the trigger. g

is an upright arm of the trigger-bolt, which engages with a notch, y, of a slide, N, in the upper side of the gun. This slide has attached to it, outside of the gun, a thumbpiece, N, by which it is operated. It has also a spring or equivalent device, 2, which holds it in proper position at different adjustments. By moving the slide forward the trigger-bolt M will be depressed or thrown down, -so asto rest closely over the two cranks 'j m and the rear end of. the trigger, and hold. them in place, so that they-cannot be raised, and consequently the gun cannot be discharged. Wheniin this position a stud, u, on the under side of the slide N strikes over the topof-the arm M and looks it down. When the slide is thrown back, the stud u slides away from the arm, the latterfalls into' the notch 1,"and is drawn back with the slide, thus raising the trigger-bolt M, freeing'the trigger and the two cranks j m and allowing the gun to be discharged when the trigger is'raised.

a is a toe or projection on the cam G, resting below the roller d, and against which the .lug Fstrikes in the down movement for resetting the cam,

The pbject in looking the trigger by .the sliding-bolt D when drawn back is to prevent the'striking of the hammers when the barrels areopeiied; The object of the trigger-boltlll is to look all the parts in carryingthe gun and when the barrels'are closed, in which case, of course,.the sliding bolt D is thrown in and does not hold the trigger. When the triggerbolt is locked down, there is no possibility of danger, although 'the gun is cocked. It has a treble security, first, by the locking of the trigger, so that it cannot be raised; second, the locking of the sear or dog that holds the hammer, and, third, the engagement of the safety-arm with the hammer, as before'described. The object of the safety-arm is to prevent accidental discharge. By simply sliding the finger-piece N back the gun is ready for firing The object of the pointer a: isto indicate upon the outside of the gun that the gun is all right and in safe condition. with the mark o, it shows that-the safety-arm is engaged with the hammer, and holds it in place. If .out of-line with the mark it shows that the safety-arm is not in engagement.

What I claim asnew, and desire to secure by Letters Patent, is v 1. In a breech-loading fire-arrn,the combination of the lug F,provided with the roller d, the cam G,resting above the roller,the link I, pivotedto the cam and extending to the hammer, and the hammer H,pr0vided with a slot, 9, in which the-end of the link rests, as shown and described, and for the purpose specified. 2. In a breech-loading firearm, the combi- When in line nation of the trigger L, provided with the raised shoulder q, and the bolt I), forlocking the gun, said bolt resting over and locking the trigger-bolt M, all substantially as and for,

the purpose herein specified.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

E. e; DOROHESTER.

Witnesses:v

R. F. Oseoon, P. A. Oosrron. 

